Ever wanted to build in an existing location, following a theme, but you didn't know the local rules or who to ask?
Wonder no more! I've compiled a list of all the public building sites that I'm aware of, along with their themes and local building rules. If you want to make a skyscraper, look up Minetropolis; for a fancy house, Oak Hills awaits you; trains, we have that too! Many of these are former contest sites, this new page centralizes their information for quick searches. If something isn't clear still, the person in charge of each site is also listed in each entry.
If you think of a location that's missing, or something seems unclear, get in touch with me!